Fig. 4From: Detecting gene–gene interactions from GWAS using diffusion kernel principal componentsSNP-gene properties. a The log median synergy (Syn) against the number of SNPs per \(PIP>0\) main effect gene (i.e. selected gene); b frequency of gene sizes for main effects genes identified via \(PIP>0\); The red vertical line indicates gene size of 20. For the histogram in b, a log transformation of the number of SNPs was taken for better presentationBack to article page